The hardness of knives in daily life is usually about 5 on the Mohs scale, and the hardness of jade is 6-6.5, which is about the same as the hardness of the glass screen of modern smartphones.

This has also created a phenomenon that the process of carving jade in China since ancient times has become very complicated, because there are no tools with sufficient hardness.

Therefore, in order to be able to cut jade, the ancients often needed to use a tool called a gongzi.

This tool resembles an erhu bow, the bowstring is made of metal, and after the jade to be carved is fixed, two people pull the bowstring at the same time, rubbing it repeatedly like a saw, so that the jade can be slowly cut, which can be described as time-consuming and laborious.

In the long history, there were knives made of flint or quartz, and slowly developed to copper and iron, until later people discovered diamond, which can be regarded as a new era of cutting and carving jade.

"But even if it's a diamond, it can't do this, right?" Qin Yu was shocked, the edges and corners of this pendant were even round, scratched on the skin, it felt like a ballpoint pen, but it cut jade, how could Nima be like cutting tofu?!

This is already unthinkable to the point of unscience!

Qin Yu, who couldn't control his curiosity, also tried it himself, and scratched the surface of the jade, the touch was similar to cutting meat, and a deep groove was drawn in an instant!

it!

"It's just the same material, the really sharp Kunwu knife can be said to be sharpened like clay, carved on this small jade, and it can easily carve the desired shape. Wang Shan was very excited, he hadn't seen Kun Wushi with his own eyes for a long time, and his hungry little eyes were like people who had been hungry for three days and found a table full of delicacies.

In this way, the slight flickering light on the interface should refer to this association! Qin Yu's heart jumped, and he hurriedly asked, "Where is the Kunwu Dao now?"

"This... Wang Shan showed an embarrassed expression.

"Mr. Qin asks you anything, and you just say it. Jibu said from the side.

"Yes, yes. Wang Shan bowed slightly, and then said: "The last time I saw the Kunwu knife was three years ago, and at that time... It should be in the hands of Yuan Lang. ”

"Yuan Lang?!" Xiang Yu, Ji Bu and the others were all taken aback, and the atmosphere was silent a lot.

Who is Yuan Lang, Qin Yu was not impressed at all, he was surprised by Xiang Yu's reaction, and said in his heart, is this still a big man?

It seemed that he had seen through Qin Yu's thoughts, and Xiang Yu, the bearded man with a rough appearance, couldn't help but smile bitterly: "Yuan Lang is not worried, but he is just a craftsman, but this person is following Han Xin." ”

But then, Xiang Yu said with a straight face: "But if Mr. Qin wants to get this Kunwu knife, I have nothing to say, even if it is a mountain of swords and a sea of fire, Xiang Ji will definitely accompany Mr. to break through!"

"It turned out to be Han Xin's subordinate, that is Liu Bang's person?" Qin Yu couldn't help but think for a while, and his brows furrowed, this is very difficult.

Kunwu Knife, he must take it, after all, there are prompts from the system, and after the previous unspeakable pain, Qin Yu's intuition tells him that this thing called Kunwu Stone must be of great use to him.

However, these thoughts must not be told to Xiang Yu.

With the character of Xiang Yu and his subordinates, if Qin Yu revealed the idea of wanting to get the Kunwu Knife, these people would definitely sacrifice their lives to accompany him on this trip.

Liu Bangke has always regarded these people as a big problem, and it is estimated that the snail paradise is already the limit, if the two have a chance to meet again, Qin Yu is sure that Xiang Yu will die.

"Sir?"

"It's fine, it's just that this thing is very strange, and I've traveled a lot of places since I got it, trying to find out where it is. Actually, it was just curiosity, and now it is enough to get the answers you want. "This matter is too dangerous, we have to think about it in the long run, Qin Yu smiled, and simply bypassed the topic: "It's rare to get together today, I'm going to leave in the evening, let's not talk about business, let's drink!"

。。。。。。

Coming back from Xiang Yu's visit, Qin Yu lay alone on the bed in the rented house, thought for a long time, and thought of the best way to bypass Liu Bang as much as possible, try to find Yuan Lang, and start directly from him.

For Liu Bang, Qin Yu is obviously a new face, and the possibility of knowing him is zero, so in this matter, the success rate of him alone is obviously much higher.

"Where have you been? I haven't seen anyone all afternoon, let me tell you, this morning scene is considered famous in the school, of course, you are a good name, I am miserable, everyone now calls me a street boy." Back in the dormitory, Liu Yuan was lying on the bed to apply medicine, and when he saw Qin Yu, he didn't have a very excited expression, and said weakly.

Qin Yu listened to Zhile: "It seems that everyone's judgment of you is still very accurate." ”

"You still said, I'll go, I'm being killed by you, I said you can fight like this, what can I do!" Liu Yuan was about to cry.

"I said, don't you believe me, do you blame me?" Qin Yu spread his hand shamelessly, and smiled thiefly.

"Forget it, don't talk about this, tomorrow is the National Day holiday, do you have any arrangements?" asked Liu Yuan.

"What arrangements can I have, the same as before, the antique city and the library. ”

"I want to travel, Sichuan Province is good. Liu Yuanbei smiled: "I heard that the girl over there is old and smart, I am angry and work hard, maybe I can find you a younger brother or sister or something." ”

"Long-distance relationships are unreliable, experts have said, minimizing the probability of long-distance relationships can avoid many tragedies. Qin Yu said disapprerovingly, he was not interested in tourism or anything, but when it came to this, it made him think of Li Tongtong.

It's been a long time since I've watched Li Tongtong's live broadcast, and I don't know where to play now.

"Young people, everything has to be experienced to make life complete. It's like you, you live like an old man in your twenties, and you almost sleep with your bottles and cans every day. Liu Yuan pursed his lips, despising Qin Yu's way of life.

Just about to refute, Qin Yu received a phone call, and it was Feng Mingqing, who he hadn't seen for a few days.

。。。。。。

"When is it?" Qin Yu asked when he met.

"Last night, got in the car and said. Feng Mingqing held the white Marlboro in his mouth and turned to his exclusive Passat: "But this life is big, it has been rescued, as for when to wake up, it depends on the will of God." The director gave a death order, and within two weeks the case must be solved and the murderer caught. ”

"Didn't the previous case be closed as suicide, why do you want to catch the murderer again?" Qin Yu asked puzzled, he clearly remembered Xiao Li's words, the director didn't let the time-consuming and labor-intensive investigation of this case.

"My niece and daughter are here to travel to the East China Sea, and she just arrived yesterday, how can she commit suicide? ”

“。。。。。。 The corners of Qin Yu's mouth twitched several times, the director's relatives, the will to survive is definitely not comparable to the previous girls, it must not be suicide.

"That's no wonder, but what does this have to do with me?" Qin Yu sighed: "How do I feel that you are always staring at me, I really have no criminal record." ”

Feng Mingqing glanced at Qin Yu, and a faint smile appeared on the corner of his mouth: "Usually everyone talks about me behind my back for being sloppy and not paying attention to my clothes, I know in my heart, only when I am with you, can I have a sense of superiority." ”

"I'll go to your uncle's, stop and park. Qin Yu scolded and scolded: "Even if you are a greasy old man, you can still show your superiority in front of me, this is unbearable at all." The mall in front of me is parked on the side, and I have to buy a suit. ”

"That's not good, this time the person is really related to you. I checked, and the name that fell this time is He Xinran, in addition to the niece of our director, she also has an identity. ”

"What identity?" Qin Yu's mind suddenly began to buzz, and a strong feeling of discomfort quickly spread throughout his body, as if he was somewhat familiar with the name, but he couldn't remember anything.

"Your high school classmates. ”